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  • #12061

Closed
Open
Opened May 15, 2016 by Icelandjack@IcelandjackReporter

Allow duplicate record fields in pattern synonyms

DuplicateRecordFields seems to not work for pattern synonyms

{-# Language PatternSynonyms, DuplicateRecordFields, NamedFieldPuns #-}

pattern A{x} = Just x
pattern B{x} = Just x
tg4t.hs:4:11: error: …
    Multiple declarations of ‘x’
    Declared at: /tmp/tg4t.hs:3:11
                 /tmp/tg4t.hs:4:11
Compilation failed.
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Type FeatureRequest
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
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Reference: ghc/ghc#12061